101220010210111 has 64 divisors (see below), whose sum is σ = 118947948134400. Its totient is φ = 85395055334400.

The previous prime is 101220010210103. The next prime is 101220010210177. The reversal of 101220010210111 is 111012010022101.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 101220010210111 - 2³ = 101220010210103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101220010210091 and 101220010210100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101220010210211) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 966146971 + ... + 966251731.

It is an arithmetic number, because the mean of its divisors is an integer number (1858561689600).

Almost surely, 2^{101220010210111} is an apocalyptic number.

101220010210111 is a deficient number, since it is larger than the sum of its proper divisors (17727937924289).

101220010210111 is a wasteful number, since it uses less digits than its factorization.

101220010210111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106640.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 101220010210111 its reverse (111012010022101), we get a palindrome (212232020232212).

The spelling of 101220010210111 in words is "one hundred one trillion, two hundred twenty billion, ten million, two hundred ten thousand, one hundred eleven".